The issue with this is 2 fold.

1) It is purely designed for static groups. So the design itself is hurting endgame guilds really badly. People are forced to fragment their groups into smaller sections and it forces you not to be able to help others at all.
2) It drops best in slot gear... so even with alliance content coming out it is still not helping that the best gear in the game you cannot do well as a guild.

SE needs to redesign this content to be doable as a guild not just a static... or quickly release something that is better then this (Gear wise) that is designed for guilds either repeatable or doable with more then 8 people. Currently this design is putting huge amount of pressure to screw over large amounts of members and it is causing large amount of drama in serious endgame freecompanys. The Raid Group / Everyone else model is a garbage model model, does not matter if most mmos use it... it is designed around clicks and screwing over others not in the group.

Baha Lab is fun to do... but it is horribly horribly designed. I would rather have a 10% drop rate and it be repeatable then have a 100% droprate and it force me to screw over some of my members who had to get on late or miss a day due to rl. This is a prime example of using lockouts to extend content instead of drop rates. This is a mmo a guild should always be better then a strict lowman static group. The devs would be good to remember that.

Baha lab while challenging and fun to do, fails as an endgame event in a group based mmo.